84115993 has 8 divisors (see below), whose sum is σ = 90675200. Its totient is φ = 77569488.

The previous prime is 84115981. The next prime is 84116003. The reversal of 84115993 is 39951148.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84115993 - 2⁹ = 84115481 is a prime.

It is a super-3 number, since 3×84115993³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84115903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14098 + ... + 19156.

It is an arithmetic number, because the mean of its divisors is an integer number (11334400).

Almost surely, 2^84115993 is an apocalyptic number.

It is an amenable number.

84115993 is a deficient number, since it is larger than the sum of its proper divisors (6559207).

84115993 is a wasteful number, since it uses less digits than its factorization.

84115993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6351.

The product of its digits is 38880, while the sum is 40.

The square root of 84115993 is about 9171.4771438411. The cubic root of 84115993 is about 438.1534060200.

The spelling of 84115993 in words is "eighty-four million, one hundred fifteen thousand, nine hundred ninety-three".